OPC Studio User's Guide and Reference
ToInt64 Method (DAPropertyId)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAPropertyId Class : ToInt64 Method
A DAPropertyId object to be converted.

Because the DAPropertyId has an implicit conversion from System.Int64 and DAPropertyIds, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a long integer (representing the numerical value of the access rights), or an element of the DAPropertyIds enumeration in place of this parameter, and the corresponding Property Id specification will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the DAPropertyId Constructor(Int64) or DAPropertyId Constructor(DAPropertyIds) constructor instead.

The value of this parameter can be null (Nothing in Visual Basic).

Converts a DAPropertyId object to a numerical property Id value.
Syntax
'Declaration
 
Public Shared Function ToInt64( _
   ByVal propertyId As DAPropertyId _
) As Long
'Usage
 
Dim propertyId As DAPropertyId
Dim value As Long
 
value = DAPropertyId.ToInt64(propertyId)
public static long ToInt64( 
   DAPropertyId propertyId
)
public:
static int64 ToInt64( 
   DAPropertyId^ propertyId
) 

Parameters

propertyId
A DAPropertyId object to be converted.

Because the DAPropertyId has an implicit conversion from System.Int64 and DAPropertyIds, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a long integer (representing the numerical value of the access rights), or an element of the DAPropertyIds enumeration in place of this parameter, and the corresponding Property Id specification will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the DAPropertyId Constructor(Int64) or DAPropertyId Constructor(DAPropertyIds) constructor instead.

The value of this parameter can be null (Nothing in Visual Basic).

Return Value

Returns a numerical Id converted from the input argument.
Remarks

In languages that support implicit conversions (such as C# or VB.NET), in many cases you do not have call this method explicitly. When indicated, a call to an available equivalent implicit conversion operator will be created by the compiler automatically.

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also